8918519 has 2 divisors, whose sum is σ = 8918520. Its totient is φ = 8918518.

The previous prime is 8918509. The next prime is 8918521. The reversal of 8918519 is 9158198.

8918519 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8918519 is a prime.

It is a super-2 number, since 2×8918519² = 159079962306722, which contains 22 as substring.

Together with 8918521, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8918509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4459259 + 4459260.

It is an arithmetic number, because the mean of its divisors is an integer number (4459260).

Almost surely, 2^8918519 is an apocalyptic number.

8918519 is a deficient number, since it is larger than the sum of its proper divisors (1).

8918519 is an equidigital number, since it uses as much as digits as its factorization.

8918519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 41.

The square root of 8918519 is about 2986.3889565828. The cubic root of 8918519 is about 207.3787475662.

The spelling of 8918519 in words is "eight million, nine hundred eighteen thousand, five hundred nineteen".